{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2016-1CK27-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2016-1CK27-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RT2016-1CK27-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2016-1CK27-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S00, 3RT2016-1CK27-ZX95, 45 mm width, screw-type coil terminals, AC-3 switching at 750 cycles/h, screw and snap-on DIN rail mounting.","salesMarkdown":"The AC-3 maximum of 750 1/h means it can switch a motor load on and off every 4.8 seconds without exceeding thermal limits; the AC-4 maximum of 250 1/h is the limit for plugging or inching duty, where the contactor makes and breaks stalled rotor current. ## Clearance and Mounting Constraints The arcing time falls between 10 and 15 ms at AC, which means the contactor clears a fault fast enough to coordinate with typical upstream motor-protective breakers. ## Wire Termination and Terminal Capacity The main circuit terminals accept solid or stranded wire from 0.5 to 4 mm², and can take two conductors per terminal: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm². This makes daisy-chaining or looping through the contactor straightforward without needing extra terminal blocks. The coil connection uses screw-type terminals — no spring cages here, so a screwdriver and the correct torque are needed for termination. ## Rated Operational Currents Across Voltages The contactor's auxiliary contacts (main contacts used for control) are rated at 6 A at 24 V, 2 A at 48 V and 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, and 0.2 A at 440 V. At 230 V the rating is 1 hp, which is the standard North American horsepower rating for a small motor. At 400 V the rating is 3 A — useful to know if you are switching a control transformer or small three-phase motor directly. The mechanical life is typically 10 million operations — far beyond the electrical life under load, which is governed by the switching frequency and duty class. No auxiliary switch is integrated into this variant, so any feedback or status indication must come from an external auxiliary contact block.","metaTitle":"Siemens 3RT2016-1CK27-ZX95 SIRIUS Power Contactor, Size S00,","metaDescription":"Siemens SIRIUS 3RT2016-1CK27-ZX95 power contactor, size S00, 45 mm width, AC-3 rating 750 cycles/h, screw terminals, DIN rail mount. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"117 mm","Solid":"0.5 ... 4 mm²","Width":"45 mm","at AC":"4 ... 15 ms","Height":"58 mm","Upwards":"10 mm","Forwards":"10 mm","Stranded":"0.5 ... 4 mm²","at 50 Hz":"0.25","at 60 Hz":"0.25","Downwards":"10 mm","Arcing Time":"10 ... 15 ms","At The Side":"6 mm","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","at AC-1 maximum":"1 000 1/h","at AC-2 maximum":"750 1/h","at AC-3 maximum":"750 1/h","at AC-4 maximum":"250 1/h","lifecycle_stage":"current","Auxiliary Switch":"No","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715","at AC-3e maximum":"750 1/h","For Main Contacts":"20 ... 12","Mounting Position":"+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface","Size Of Contactor":"S00","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²","Product Brand Name":"SIRIUS","Product Designation":"Power contactor","at 24 V rated value":"6 A","at 48 V rated value":"2 A","at 60 V rated value":"2 A","Of Contactor Typical":"10 000 000","at 110 V rated value":"1 A","at 125 V rated value":"0.9 A","at 220 V rated value":"0.3 A","at 230 V rated value":"1 hp","at 400 V rated value":"3 A","at 440 V rated value":"0.2 A","at 480 V rated value":"7.6 A","at 50 Hz rated value":"120 V","at 500 V rated value":"2 A","at 60 Hz rated value":"120 V","at 600 V rated value":"9 A","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","For Auxiliary Contacts":"20 ... 12","For Main Current Circuit":"screw-type terminals","at 110/120 V rated value":"0.33 hp","at 200/208 V rated value":"2 hp","at 220/230 V rated value":"3 hp","at 460/480 V rated value":"5 hp","at 575/600 V rated value":"7.5 hp","Relative Humidity Minimum":"10 %","Of Main Circuit Rated Value":"6 kV","Safety-Related Switching On":"Yes","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"0.9 W","at AC-2 at 400 V rated value":"4 kW","at AC-3e rated value maximum":"690 V","at AC-4 at 400 V rated value":"8.5 A","safety-related switching OFF":"Yes","Substance Prohibitance (Date)":"07/01/2006","Design Of The Surge Suppressor":"with varistor","Of Auxiliary Circuit Rated Value":"6 kV","at AC-5a up to 690 V rated value":"19.4 A","at AC-5b up to 400 V rated value":"7.4 A","For Auxiliary And Control Circuit":"screw-type terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"gG: 20A (690V,100kA), aM: 16A (690V, 100kA), BS88: 20A (415V, 80kA)","Without Load Current Share Typical":"4.2 W","At Contactor For Auxiliary Contacts":"Screw-type terminals","With Type Of Coordination 1 Required":"gG: 35A (690V,100kA), aM: 20A (690V,100kA), BS88: 35A (415V,80kA)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"0.3 W","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 2x 12","number of NO contacts for main contacts":"3","reference code according to IEC 81346-2":"Q","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Number Of Poles For Main Current Circuit":"3","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","mirror contact according to IEC 60947-4-1":"Yes","with low demand rate according to SN 31920":"40 %","with high demand rate according to SN 31920":"73 %","Type Of Voltage Of The Control Supply Voltage":"AC","Limited To 1 S Switching At Zero Current Maximum":"155 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"111 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"86 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"66 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"55 A; Use minimum cross-section acc. to AC-1 rated value","contact rating of auxiliary contacts according to UL":"A600 / Q600","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"gG: 10 A (500 V, 1 kA)","minimum cross-section in main circuit at maximum AC-1 rated value":"4 mm²","number of NC contacts for auxiliary contacts instantaneous contact":"2","number of NO contacts for auxiliary contacts instantaneous contact":"3","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/37062b768e57998f8d472d3401533041.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=416668&mlfb=3RT2016-1CK27-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2016-1CK27-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of the 3RT2016-1CK27-ZX95?","answer":"The depth is 117 mm. This is the dimension from the DIN rail mounting surface to the front of the contactor, and it must be accounted for in enclosure depth calculations."},{"question":"What wire sizes does the 3RT2016-1CK27-ZX95 accept?","answer":"The main terminals accept solid or stranded wire from 0.5 to 4 mm². They also accept two conductors per terminal in combinations of 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm²."},{"question":"Will the 3RT2016-1CK27-ZX95 drop into a panel specified around the 3RT2027-1AK64-3MA0?","answer":"No — the 3RT2016 is a size S00 (45 mm wide), while the 3RT2027 is a size S2 (wider footprint). The DIN rail mounting may align, but the width difference will leave a gap and the terminal layout will not match. Panel rework is required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2016-1CK27-ZX95","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3RT2016-1CK27-ZX95 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}